academic:
unscholarly,
ignorant,
uneducated,
stupid.
all:
unscholarly.
noun:
uncultivated,
extracurricular,
unlearned,
noneducational,
untaught,
unintellectual,
unpolished,
semiliterate,
uninformed,
unschooled,
ill-bred,
lowbrow,
dark,
unstudious,
undereducated,
benighted,
unknowledgeable,
unrefined,
untutored,
uncultured,
uninstructed,
uncivilized.